here to join in right now is peter johnson, jr. >> good morning. let's see what the union officials said about mr. rockefeller, the train engineer. he said he basically nodded, he had the equivalent of what we all have when we drive a car. that is you sometimes have a momentary nod. he caught himself, but he caught himself too late. his lawyer said also that he suffered from something called highway hypnosis. >> what's that. >> a phenomenon where you have microsleep. where you are apparently awake. you look like you're awake, but consciously you're out of it. you're not functioning. did you ever want to put sugar in and instead put salt? did you ever go down the highway and miss two or three exits and say, oh, i missed two or three exits? so the lawyers are positiveiting a defense that there was no criminal conduct, that it was microsleep, a highway hypnosis, that he was transfixed by a straight away, that he dozed, that he was dazed. they have all these theories out there right now. >> here is the thing, everybody has done those things you're talk